Music-leaf turner.



I. E. & H. J. JONES.

MUSIC LEAF TURNER.

APPLICATION FILED AUG-20, 1913.

1,151,469. Patented Aug. 24, 1915.

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l. E. & H. J. JONES.

.MUSIC LEAF TURNER.

APPLICATION F|LD AUG.20, 1913.

1 1 5 1 ,469. Patented Aug. 24, 1915.

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COLUMBIA PLANDGRAPH co. WASHINGTON. D41.

L E. & H. J. JONES.

MUSIC LEAF TURNER.

APPLICATION FILED AUG-20, 1913.

1,1 5 1 ,469. Patented Aug. 24, 1915.

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UNITED STATES PATENT onrron.

ISAAC E. JONES AND HUGH J'. JONES, OF DENVER, COLORADO.

MUSIC-LEAF TURNER.

Application filed August 20, 1913.

To all to 710m it may concern Be it known thatweflsaAo E. J ONES and HUGH J. JONES, citizens of the United. States, residing at Denver, in the county of Denver and State of Colorado, have invented new and useful Improvements in Music-Leaf Turners, of which the following is a specification.

This invention relates to leaf turners and particularly to devices for turning leaves of sheet music; and it has for its primary object the provision of an article of this character upon which the music may be arranged and the leaves thereof successively turned.

Another object of the invention is the provision of a returnmechanism which may be brought into effective returning condition in successive order of movement of the turning arms so that when the last arm is adjusted from. its initial position the return mechanism will be set to permit all of the arms to be returned simultaneously.

A'further object of the invention is the provision of an automatic locking mechanism for holding the returning means inactive subsequent to each turning adjustment of the respective arms.

Another object of the invention is the provision of a device of this character which will be adjustable so as to accommodate itself to sheets of varying lengths.

A still further object of the invention is the provision of power transmitting mechanism which will include a set of gear segments having starting teeth formed so as to insure the initial advancement of the segments against the mating gears of the turning arms.

Anotherobject of the invention is to provide companionturningarms and means for supporting the arms such as to minimize the possibility of more than one arm being turned at a time.

A still further object of the invention is the provision of a device of this character wherein the leaves may be turned expeditiously; one which may be readily adjusted to 'or' removed from the instrument and one which will be ornamental and attractive and which will consist of comparatively few operating parts. I

. With these and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts as will be hereinafter described and claimed.

Specification of Letters Patent.

Patented Aug. 241, 1915.

Serial no. 785,737.

In the accompanying drawings :Figure 1 1s a perspective view of the device; Fig. 2 1s a front view of the shaft supporting frame and illustrating the application of the shaft thereto; Fig. 3 is a horizontal section, taken on the line 33 of 2; Fig. at is a section on line H of Fig. 5; Fig. 5 is a rear view of the device; Fig. (5 is a perspective view of a portion of the shaft supporting frame; Fig. 7 is a detail elevation, partly in section, showing the upper portion of the frame, the carriage, the controlling shaft, the turning shaft and the gears connecting said shafts; Fig. 8 is a perspective view of one of the shaft sections; and Fig. 9 is a perspective view of the other shaft section; Fig. 10 is a perspective view of the operating lever and shaft.

The device comprises a main frame 1 having terminal side bars 2, which are connected intermediate of their ends by a cross bar 3 having a vertical passage & therein for a purpose to be hereinafter described. The inner surfaces of the bars 2 at points above the connecting bar 3 are rabbeted at 5, and secured by means of screws or other suitable fastenings 6 in said passage are metallic wear and guide plates 7 having longitudinally-extending slots 8 therein into which are projected lugs 9 formed at the ends of superimposed bearing plates 10 and 11 in a vertically sliding carriage 12. The plates 10 and 11 are connected by vertical end blocks 13, which are slidable over the inner surfaces of the plates 7 and which are adapted through friction with the plates to permit the carriage to be sustained in any required adjusted position.

The plates 10 and 12 of the carriage are provided with extensions 14 which have bearing openings 15 therein which fixedly receive a shaft 16 for the turning arms 17. This shaft is provided with. a lower threaded portion 18 for the reception of the clamping nut 19, and as illustrated the shaft is provided at a point above the plate 10 with a member 20 having a series of notches 21 therein, in which are extended the inner ends of brace arms 23, the latter having their outer ends connected to the turning arn s 17, whereby to hold the latter in horizontal positions and to prevent the weight of one of the arms from being applied to an adjacent arm in such manner as to eliminate undue friction between the parts and permit one of the arms to be turned freely Without affecting the adjacent arm. The arms are provided with inner hubs 24, which are loosely fitted to the shaft 16, and as shown these hubs are provided with gear teeth Each of the arms 17 is provided at its outer end with a clamp 26 of any suitable well known construction which will permit the arms to be engaged with the leaf.

The controlling shaft comprises telescopic sections 27 and 28, the latter being extended through the passage 4 in the connecting bar 3 and through a passage in the bar 11, and as illustrated the extreme upper end of the shaft is reduced and fitted in a correspondingly formed opening 80 in the plate 10. The section 27 of the telescopic shaft is provided with gear segments 81, which are disposed substantially superimposed and arranged relatively of each other and with such regards to the adjacent gear wheels 25 so as to permit the latter to be successively operated when motion is imparted to the shaft 26, as will be understood. Each of these segments is provided with identical intermediate teeth 32 and end starting teeth 38, the latter having their points located within the plane of the points of the intermediate teeth so as to insure the initial starting and provide intermeshing connection of the segments with their respective gears. The bar 3 is provided with a depending pin 34 around which is coiled and mounted to slide in a vertical direction one terminal 85 of a spring 36, the latter being arranged around the section 27 of the shaft 26, and as illustrated the opposite terminal of the spring is secured at 87 to the section'27. In this manner the shaft is held under tension immediately on rotation of one of the turning arms. The shaft section 27 is provided with a longitudinally extending slot 39 in which is extended a pin or key 40, upon the shaft section 28, so that the latter is free for rotation with the former.

At the lower end the shaft section 27 is provided with a beveled pinion 41, which meshes with a rack segment 42, the latter being mounted upon a shaft 43, and as shown the latter is provided with an arm 44 which is connected by a rod 45 with a similar arm 46. The arm 46 is mounted on one end of a shaft 47, and as shown the latter is provided with a rectangular extension 48, which is extended through an elongated slot 49 in the end of a controlling lever 50. A pivot pin 51 extends through the rectangular portion of the shaft and through the arm 50 so as to permit the latter to be rocked relatively of a guide plate 52. This plate is secured at one end with a housing plate 53, as illustrated. The plate 53 is provided with an arcuate slot 54, and as shown the arm 50 carries a stem 55 which extends through the slot 54 and which is provided with a knob or finger piece 56 which lies against one side of the guide 52 and in a position whereby it may be readily grasped and operated by the hand of the operator. The shaft 47 is provided with a spring 57 having a free portion bearing against the arm 50 whereby to normally cause the locking dog or tooth 58 of said arm to be advanced against the coacting teeth 59 upon the inner surface of the plate 52 and arranged thereon at a point adjacent to one of the longitudinal walls of the slot 54.

' From the construction described it is obviously seen that under the action of the spring 36 the shaft 26 is normally turned to cause the turning arms 17 to be arranged to the left of the plate 53 as shown in Fig. 1. The clamps 26 of the turning arms are then arranged so that they may be engaged with the different leaves to be turned. At the discretion of the operator the finger piece of knob 56 may be drawn in a downward direction, and as a consequence thereof the first rack segment 31 of the shaft 26 will be brought into coacting engagement with the companion gear 25 of the first turning arm, and the latter thereby moved to an operative leaf turning position. At this time the spring 57, under its normal action, causes the dog or tooth 58 of the lever 50 to be advanced into engagement with the adjacent coacting tooth 59 on the plate 52. In successive order this operation may be repeated until all of the arms have been adjusted to the desired positions and the spring 36 tensioned so that subsequently the operator may press forwardly on the button 56 to release the tooth 58 from the adjacent c0- acting tooth 59 to permit the shaft 28 to rotate and thereby cause the required transmission power to the arms 17 and the return of the arms to their initial position.

' From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention as claimed.

Having thus described our invention, what we claim is In a music leaf turner, a frame, a carriage mounted in the frame for vertical movement, a vertical shaft mounted on, carried by and movable vertically with said carriage, turning arms arranged one above another, pivotally mounted on said shaft and each having a gear at its pivotal end, a longitudinally extensible controlling shaft having telescopically arranged members, one mounted in the frame and the other mounted in and movable vertically with said carriage shaft in the reverse direction against the and having a serles of segmental gears artension of the spring.

ranged one above another and for snoces- In testimony whereof We afliX our signaslvely engaging the gears of the turning tures in presence of tWo wltnesses. 5 arms, and means to actuate sald longitudl- ISAAC E JONES nally extensible shaft, a spring to turn the I HUGH J JONES controlling shaft in one direction and means mounted on the frame to permit step by lVitnesses: step rotation of said longitudinally eXten- CHARLES R. Jones,

10 sible shaft and said spring and to turn said H. A. RnYER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). C. 

